Before replacing the water pump on these engines, you should detach the negative
Battery Cable and drain the coolant from the system. Then, remove the fan and viscous fan drive only from the water pump and do not disconnect the
Fan Blade from the drive if the whole pump is being taken out. Following this, remove the fan shroud-to-radiator screws and lift out the fan shroud assembly with the fan blade/viscous fan drive, but do not store the thermal viscous fan drive in a horizontal position which might allow its silicone fluid to go into the lubricant. After, get the accessory
Drive Belt off the water pump pulley, take out the hose clamp on the upper radiator hose and then remove the seven bolts for the water pump and one session bolt. Don't pry into the water pump on the timing chain case/cover because it could lead to cuts in the machined surfaces and possible leaks. Then, remove the water pump from the cylinder and throw away the gasket.